The sun has a strong influence on the snow pack and the hazard will rise on slopes with prolonged solar influence. Especially in steeper and rocky terrain.
Weather Forecast
Cloudy with sunny periods Sunday. Gusty SW winds will continue to move snow up high and alpine temperatures are forecasted to remain cool, -9. Snow is in the forecast but no significant accumulations until Tuesday.
Snowpack Summary
Another 5 to 10cm overnight in the Icefields region brings HST amounts to 15 to 25cm, all that has been scoured and transported by gusty west winds creating extensive wind effect TL and above. Temperature and sun crust on solar aspects; now down as much as 45cm in isolated areas with dry, low density snow over the crust at higher elevations.
Avalanche Summary
Noticeable wind effect in the alpine though no natural activity observed or reported.
Confidence
Timing or intensity of solar radiation is uncertain on Sunday
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.